Beta: Over-eager autocompletion in anonymous functions

[StringEpsilon]

Environment data

dotnet --info output:

.NET SDK:
 Version:   7.0.100
 Commit:    e12b7af219

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19045
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\7.0.100\

VS Code version: 1.78.2
C# Extension version: v2.0.206

Note: I have disabled the extension "IntelliCode for C# Dev Kit".

OmniSharp log

Not applicable.

Steps to reproduce

1. Open any C# file.
2. Write an anonymous function

Expected behavior

The C# extension will not autocomplete with random, irrelevant suggestions.

Actual behavior

I'll use "|" to mark my cursor position.

var foo = myList.Where(|)
-> type "y"
var foo myList.Where(y|)
-> type " " (space)
var foo myList.Where(YDecoder |)

Alternative example:

Func<int, int> square = |
-> type "x"
Func<int, int> square = x|
-> type " "
Func<int, int> square = X25519 |

This happens with a lot of one-letter variable names. It can also happen with proper names, although at least so far I have not encountered that all to often. Seems to depend on how close the name matches whatever types are available.

[genlu]

This is quite annoying indeed. It's caused by not handling the case equivalent to what we call SuggestionMode in VS. Working on a fix